A parametric solution for optimal overlapped block motion compensation

We find the optimal window for overlapped block motion compensation (OBMC) by statistically modeling the motion field, the field of block motion estim ates and their relationship. This enables us to show how the optimal OBMC w indow is affected by random field parameters, such as the variance of the m otion held and the correlation coefficients of both the intensity field and the motion held, The OBMC window obtained in this fashion is shown to have good performance in reducing prediction error. Furthermore, this parametri c solution provides insight into motion uncertainty and the overlapped moti on compensation process.